noun1. a person known well to another and regarded with liking, affection, and loyalty; an intimate
2. an acquaintance or associate
3. an ally in a fight or cause; supporter
4. a fellow member of a party, society, etc
5. a patron or supporter
a friend of the opera
6. be friends
7. make friends
verb (transitive)8. to add (a person) to one's list of contacts on a social networking website
9. an archaic word for befriend